Adult sex-ratio distortion in the native European polecat is related to the expansion of the invasive American mink

摘要: Biological invasions represent a threat to worldwide diversity, but large scale patterns of their impacts are rarely reported. The population sex-ratio influences many other parameters such as the effective size, mating system or persistence in long run. At local scale, presence American mink (Neovison vison), successful invader, has been shown distort adult (ASR) native European polecat (Mustela putorius). aim current work is determine whether this process generalized across entire species range, by studying 71 datasets and 10,847 polecats with meta-analytic approach. Datasets were male-biased when these included individuals. different sampling methods (trapping/hunting, live trapping road-kills) did not affect sample (SSR). ASR more skewed toward males mink, representing conservation concern due reduction reproductive females. potential repercussions distortion on discussed. This first time that range linked competition an invasive species.